Trying to figure something out...

I put a bunch of new music into the phone, on the Micro SD card. Everything seems great except one thing. Well, two, actually. I can choose by artist or album or playlist, and it knows who all the artists are except Zero 7 and Massive Attack. They're lumped together as Unknown Artist and I don't know why.

True, it's a rather minor problem in the grand scheme of things, but it's annoying!

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